What behavior is famously exhibited by the pill bug (Armadillidium vulgare)?
Answer
Rolling into a tight, protective ball (conglobation)
The pill bug, identified scientifically as Armadillidium vulgare, possesses a unique defense mechanism known as conglobation. This behavior involves tightly rolling its entire segmented body into a perfect sphere. The primary purpose of this action is twofold: moisture conservation, by presenting a hardened, continuous outer surface that minimizes exposed area to dry air, and physical defense against predators. In contrast, sow bugs, while related, typically cannot achieve this complete roll and instead rely on being flatter and utilizing burrowing or seeking deep crevices for protection.
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